djd

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djd

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My question is not whether this is right or wrong , I may be! This has to do with putting two circuits on a 120 volt 20 amp duplex receptacle.The person would of course break the tab on at least the hot side if not the neutral also. I feel this is a nec violation but I cant seem to find it in the book.
 

iwire

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My question is not whether this is right or wrong , I may be! This has to do with putting two circuits on a 120 volt 20 amp duplex receptacle.The person would of course break the tab on at least the hot side if not the neutral also. I feel this is a nec violation but I cant seem to find it in the book.

It depends, is it supplied by two 2-wire circuits or one 3-wire circuit?
 

GoldDigger

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My question is not whether this is right or wrong , I may be! This has to do with putting two circuits on a 120 volt 20 amp duplex receptacle.The person would of course break the tab on at least the hot side if not the neutral also. I feel this is a nec violation but I cant seem to find it in the book.

You cannot find it in the NEC because it is not a violation, but rather a relatively common practice.

The NEC will discourage you from trying to use circuits at two different voltages on a single yoke, but the duplex receptacles you see will either be both 120V or both 240V.
If the branch circuit is an MWBC the neutral tab should not be broken. If each circuit has its own neutral from the panel you MUST break the neutral tab too.
 

iwire

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If the branch circuit is an MWBC the neutral tab should not be broken. If each circuit has its own neutral from the panel you MUST break the neutral tab too.

I think that is the OPs question and I agree your answer the hard part will be citing a code section.:)

Pretty much stuck with either calling it a parallel conductor issue or a 're-bonding' of a neutral.
 

djd

Senior Member
djd

I think that is the OPs question and I agree your answer the hard part will be citing a code section.:)

Pretty much stuck with either calling it a parallel conductor issue or a 're-bonding' of a neutral.

i feel good that its not in the code but hell I got schooled by a millennial , I just even with two two wire circuits you have 208v on a 120 recep., and your this is common it has come up twice in the recent past. Thanks for the insight.
 

iwire

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i feel good that its not in the code but hell I got schooled by a millennial , I just even with two two wire circuits you have 208v on a 120 recep., and your this is common it has come up twice in the recent past. Thanks for the insight.

No, you will have 120 volts on each of the two receptacles contained in a duplex. Have no worry, they are rated for this use.
 

infinity

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i feel good that its not in the code but hell I got schooled by a millennial , I just even with two two wire circuits you have 208v on a 120 recep., and your this is common it has come up twice in the recent past. Thanks for the insight.

A duplex is two receptacles you can wire them independently with a MWBC or two 2-wire circuits, breaking the tabs accordingly.
 

n1ist

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And then there's the Leviton 5842. 120V and 240V on the same yoke.

ibcGetAttachment.jsp
 

GoldDigger

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Is it just me or does there appear to be a bridge tab on the left side of that receptacle?

Yup, and if the 240 L side is fed from the same 120/240 line as the 120 hot and fed from the same MWBC, the bridge tab would be functional and not need removal. Otherwise it could be illegal paralleling, but not necessary a short if left in place.
There better not be a bridge on the neutral side though. :happysad:
 

JFletcher

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Location
Williamsburg, VA
Yup, and if the 240 L side is fed from the same 120/240 line as the 120 hot and fed from the same MWBC, the bridge tab would be functional and not need removal. Otherwise it could be illegal paralleling, but not necessary a short if left in place.
There better not be a bridge on the neutral side though. :happysad:

Yeah I brainfarted and was thinking the left side was neutral and hot, not hot/hot.
 

ActionDave

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Yup, and if the 240 L side is fed from the same 120/240 line as the 120 hot and fed from the same MWBC, the bridge tab would be functional and not need removal. Otherwise it could be illegal paralleling, but not necessary a short if left in place.
There better not be a bridge on the neutral side though. :happysad:
You got your reply in before I did. Do you have one of those super fast stock trading computers?
 
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